Help Please (NET::ERR_CERT_COMMON_NAME_INVALID)

[benfek]

Hi,

my domain is folevents.com.au. I am using godaddy and i updated the certificate but it keeps showing this error. NET::ERR_CERT_COMMON_NAME_INVALID

I’m quite basic with my SSL knowledge and skills so any help would be greatly appreciated!!!

[JuergenAuer]

Hi @benfek

@benfek

my domain is folevents.com.au.

your main configuration is "partial good" ( folevents.com.au - Make your website better - DNS, redirects, mixed content, certificates ):

---

Domainname	Http-Status	redirect	Sec.	G
• http://folevents.com.au/
148.66.158.28	301	https://folevents.com.au/	0.897	A
• http://www.folevents.com.au/
148.66.158.28	301	https://www.folevents.com.au/	0.890	A
• https://folevents.com.au/
148.66.158.28	301	https://www.folevents.com.au/	3.750	B
• https://www.folevents.com.au/
148.66.158.28	200		4.410	N
Certificate error: RemoteCertificateNameMismatch

---

Your non-www-version has the correct certificate. But your certificate

CN=folevents.com.au
	03.01.2019
	03.04.2019
	folevents.com.au - 1 entry

has only one domain name. But if you redirect to your www - version, you need one certificate with two domain names - www and non-www.

So create this certificate with two names. With Certbot, use something like -d folevents.com.au -d www.folevents.com.au.